Seat-spring.



D. M. DEARiNG.

SEAT SPRING.

APPLICATION FILED DEC. 4. 19M.

1,204,746 Patented Nov. 14, 1916.

UNITEE sra'rns rn'rmv'r orrion.

DAVID M. DEARING, OF JACKSON, MICHIGAN, ASSIGNOR OF ONE-HALF TO WILLIAM TURNEY, OF JACKSON, MICHIGAN.

SEAT-SPRING.

moans.

Application filed December 4, 1914. Serial No. 875,479.

To all whom it may concern:

Be it known that I, DAVID M. DEARING, a citizen of the United States, residing at Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Seat-Springs, of which the following is a specification.

This invention relates to improvements in seat springs especially adapted or designed for agricultural implements, such as plows, cultivator-s, mowers or reapers, etc.

The invention has for its object, among other things, to serve as a shock-absorber, thus, while providing for the requisite resiliency, avoiding discomfort to the seat occupant and reducing wear to the minimum.

A further object is to provide for securing the maximum vertical movement or action of the seat; to prevent the striking together of the seat-carrying or attached portion and the supporting standard attached portion of the spring, the resultant being an air-cushioning action or efiect.

A still further object is to carry out the aforesaid ends in a simple, effective and inexpensive manner and with facility.

The invention therefore consists primarily of a resilient member having the general outline of the letter S, or that of the letter Z with certain structural departures therefrom including the supporting standard therefor, substantially as hereinafter more fully disclosed and defined by the appended claim.

In the accompanying drawing is illustrated the preferred embodiment of my in vention wherein it will be understood that various changes and modifications may be made as to the detailed construction and arrangement of parts without departing from the scope of the claim, and in which draw- 1ngs Figure 1 is an elevational view of my seatmounting spring and standard. Fig. 2 is a like view, showing the spring and standard integral or in a continuous piece. Fig. 3 is a like view of the spring and standard in separate pieces, with the lower terminal or end of the standard extended reversely to the form of standard, aforesaid, the loops of the terminals of Figs. 2 and 3, being the reversal of Fig. 1. Figs. 4: and 5 are like views of the same parts, the spring and standard being in separate .parts as in Fig. 3, both of the loops of Fig. 4, however, be-

ing directed or projected downwardly, the standards of Figs. 3, 4 and 5 having their lower terminals or ends reversely directed from Figs. 1 and 2. Fig. 6 is a detached perspective view of the spring-member after that form ortype, however, as disclosed in all of the views except in Fig. 1.

In carrying out my invention I suitably construct the spring, designated generally as 1, preferably of flat strip resilient metal and in the general outline, of the letter S or Z, the same being in separate, or two parts or limbs 2, 3, adj ustably connected together, intermediate their limbs by slot and bolt connection, theslots and bolt constituting such connection being designated as 4 and 5, respectively. The upper limb 2 has suitable apertures therethrough as indicated in dotted lines in Figs. 1 and 5 for the reception of the seat-attaching bolts. The lower limb 3 has in continuation in one piece therewith the supporting standard 7 the lower end of which standard has a horizontal extension or terminal 8 which has also apertures 9 therethrough, as indicated in dotted lines, for the reception of the seat-standard attaching bolts (not shown). The adjustability of the seat-spring provides for the accommodation of the same to seat-occupants according to the weight, while by making the spring in two connected parts outputor facility of manufacture is provided for.

Patented Nov. 14, 1916.

It will also be observed that by means of this construction of spring, the same will be free from a pounding or hammering action as the seat-attaching limb is prevented from having concussive contact with the adjacent portion of the spring by reason of the intermediate compressed air cushion, the resultant of the action of the superposed seat and its occupant when the vehicle is in motion, and which action thus acts as a shock absorber.

The two resultant limbs 2 and 3 of the spring 1., in each example comprising the primary form and the modifications, have loop-formations or connections therebetween and their intermediate portions, the loops of the primary form, as exemplified in Fig. 1 and designated as 10 and 11, being circular, and partially circular and directed downwardly, respectively, and occupying diagonally opposite positions. In Figs. 2, 3 and 6, the loops of the springs, designated as the seat-attaching portion of the upper limb of the spring, it will be observed, is preferably of right-lined formation continuously from the upper surface of the loop.

I claim and desire to secure by Letters Patent-V A spring of the character specified, made in a single or continuous fiat piece of resilient metal, and comprising upper and lower spaced horizontal oppositely extend-- mg portions and an intermediate diagonal equalizing bar disposed at an acute angle with a vertical plane intersecting said horizontal portions and connected at opposite ends therewith by reversely curved loops extending laterally in opposite directions of the horizontal portion, said loops working in unison with the intermediate equalizing bar, under pressure, and the horizontal and diagonal portions of the spring adapted to lie flatwise against each other when the spring is fully compressed, the upper horizontal limb reciprocating horizontally and bodily in a Vertical plane in absorbing shocks.

In testimony whereof I affix my signature in presence of two Witnesses.

DAVID M. DEARING.

WVitnesses JOHN MCDEVITT, CHRISTIE A. STEARNS..

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

